The Battery Thermal Management System (BTMS) acts as the “silent engine” and “guardian” of electric vehicle batteries. Its mission is to maintain battery pack temperature within the optimal 15–35 °C range through precise cooling, heating, and thermal balancing—ensuring performance, safety, and longevity. Lithium‑ion cells are highly temperature‑sensitive: overheating risks leakage, smoke, or even thermal runaway; extreme cold increases internal resistance and drastically cuts usable capacity; uneven temperature distribution accelerates cell aging and shortens pack life. Effective thermal management is therefore indispensable.
Among mainstream technologies, liquid cooling stands out for its superior thermal conductivity and specific heat, delivering high efficiency and uniform temperature distribution. Indirect liquid cooling—where coolant circulates through a cold plate without direct contact with cells—is the most widely adopted solution in commercial vehicles, offering a proven balance of performance and safety.
Hebei Nanfeng Automobile Equipment (Group) Co., Ltd., founded in 1993, operates six manufacturing plants and is a leading supplier of new‑energy vehicle components in China, as well as a designated supplier for Chinese military vehicles. With extensive expertise in high voltage coolant heaters, electronic water pumps, electric compressors, and thermal components, Nanfeng offers integrated, turnkey thermal solutions.
Our NFEHP series water‑cooled BTMS is purpose‑built for heavy‑duty trucks, buses, and cold‑chain logistics vehicles, addressing the harshest real‑world conditions: hill climbing, heavy loads, frequent stop‑starts, long‑haul trips, and diverse climates. This indirect liquid‑cooled system integrates intelligent heating functionality with the following advantages:
- Integrated, modular design – compact installation and easy capacity expansion.
- Stable cooling and linear heating – surge‑free, linear heating curve with fast ramp‑up, ensuring precise control and avoiding thermal shock.
- Flexible heating power – configurable from 3 kW to 15 kW to match various battery capacities, effectively solving cold‑start issues in low‑temperature environments.
- Excellent temperature uniformity – maintains pack temperature difference within 5 °C, significantly extending battery cycle life.
By deeply adapting to mainstream commercial‑vehicle battery chemistries, our system resolves critical pain points: rapid range degradation, severe cold‑weather capacity loss, and high maintenance costs. The indirect cooling design eliminates leakage risks, while the robust construction meets military‑grade reliability standards.
Nanfeng’s Electric Bus BTMS not only protects battery health but also enhances charging efficiency and overall operating economy. With decades of innovation and a commitment to quality, we deliver dependable, high‑performance thermal management that empowers commercial fleets to operate efficiently and sustainably in any environment.
Post time: Jul-16-2026
